Email Us

info@npdes.com

(888) 397-9414

9:00am EST–4:00pm PST

Office Hours

M–F, 9:00am–4:00pm EST

Classes

Register Here

Email Us

info@npdes.com

(888) 397-9414

9:00am EST–4:00pm PST

Office Hours

M–F, 9:00am–4:00pm EST

Classes

Register Here

Email Us

info@npdes.com

 


Class Registration Calendar

09
Mar
2026

CSI-MS4 Idaho (PT)

03-09-2026 8:30 am - 03-10-2026 4:30 pm
Online Webinar
$799 + registration

We are no longer accepting registration for this event

09
Mar
2026

CSI-MS4 Washington/Oregon (PT)

03-09-2026 8:30 am - 03-10-2026 4:30 pm
Online Webinar
$799 + registration

We are no longer accepting registration for this event

09
Mar
2026

Industrial: Sector A - Timber Products

03-09-2026 9:00 am -10:00 am
Online Webinar
$50

We are no longer accepting registration for this event

09
Mar
2026

Industrial: Sector B - Paper and Allied Products

03-09-2026 11:00 am -12:00 pm
Online Webinar
$50

We are no longer accepting registration for this event

09
Mar
2026

Industrial: Sector C - Chemical and Allied Products

03-09-2026 1:00 pm -2:00 pm
Online Webinar
$50

We are no longer accepting registration for this event

11
Mar
2026

CSI-Industrial West Coast Online (PT)

03-11-2026 8:00 am -4:00 pm
Online Webinar
$399 + registration

We are no longer accepting registration for this event

12
Mar
2026

Florida Stormwater Erosion and Sediment Control Inspector

03-12-2026 8:30 am - 03-13-2026 4:00 pm
Online Webinar
$225 + registration
Florida Stormwater Erosion and Sediment Control Inspector
16
Mar
2026

CSI-MS4 Arkansas/Oklahoma (CT)

03-16-2026 8:30 am - 03-17-2026 4:30 pm
Online Webinar
$799 + registration
16
Mar
2026

CSI-MS4 Midwest States (CT)

03-16-2026 8:30 am - 03-17-2026 4:30 pm
Online Webinar
$799 + registration
16
Mar
2026

CACEO - Illicit Discharge Detection and Elimination (PDT)

03-16-2026 10:00 am -12:00 pm
Online Webinar
$75 + registration
CACEO - Illicit Discharge Detection and Elimination (PDT)